(E,E)-1,2-Bis(2,4,5-trimethoxybenzylidene)hydrazine
نویسندگان
چکیده
The asymmetric unit of the title compound, C(20)H(24)N(2)O(6), contains one half-mol-ecule, the complete mol-ecule being generated by a crystallographic inversion centre. The mol-ecule is nearly planar with a dihedral angle between the two benzene rings of 0.03 (4)° and the central C/N/N/C plane making a dihedral angle of 8.59 (7)° with each of its two adjacent benzene rings. The two meth-oxy groups at the ortho and meta positions are slightly twisted [C-O-C-C torsion angles = 7.23 (12) and 5.73 (13)°], whereas the meth-oxy group at the para position is almost coplanar with the attached benzene ring [C-O-C-C torsion angle = -2.02 (13)°]. The crystal structure is stabilized by a weak C-H⋯π inter-action.
منابع مشابه
(E,E)-1,2-Bis(2,4,6-trimethoxybenzylidene)hydrazine
The title mol-ecule, C(20)H(24)N(2)O(6), lies on an inversion centre. All non-H atoms are essentially coplanar, with an r.m.s. deviation of 0.0415 (1) Å and a maximum deviation of 0.1476 (1) Å for the meth-oxy C atom at the 4-position of the benzene ring. The crystal structure is stabilized by weak C-H⋯N and C-H⋯π inter-actions.
متن کامل(1E,2E)-1,2-Bis(2,3,4-trimethoxybenzylidene)hydrazine
The title compound, C(20)H(24)N(2)O(6), was obtained as an unexpected product by the reaction of hydrazinium dithio-carbazate with 2,3,4-trimeth-oxy-benzaldehyde in refluxing ethanol. The mol-ecule lies on a center of inversion. The crystal packing is stabilized by weak inter-molecular C-H⋯O inter-actions.
متن کامل3,4-Dimethyl-N-(2,4,5-trimethoxybenzylidene)-1,2-isoxazol-5-amine
In the title compound, C(15)H(18)N(2)O(4), the aromatic rings on the azomethine double bond are trans to each other [C-C=N-C torsion angle = -178.29 (12)°] and they are approximately coplanar, the dihedral angle between them being 5.0 (1)°.
متن کامل1,2-Bis(2-furylmethylene)hydrazine
Crystals of the title compound, C(10)H(8)N(2)O(2), were obtained from a condensation reaction of hydrazine hydrate with furfural. In the crystal structure, the mol-ecule is centrosymmetric and almost planar and the furan rings are parallel by symmetry.
متن کاملSynthesis and anticancer evaluation of novel acenaphtho [1,2-e]-1,2,4- triazine derivatives
In this paper we present the convenient syntheses of seven new phenyl hydrazin derivatives 8 (a-h). For this purpose, acenaphtho [1,2-e]-1,2,4-triazine-9(8H)-thione (3) was prepared, starting from acenaphthylene-1, 2-dione (1) and thiosemicabazide in good yield. The reaction of (3) with benzyl chloride resulted to synthesis of 9-(benzylthio)-acenaphtho[1,2-e]-1,2,4-triazines (5) that reacted wi...
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011